All Gemstones

3.81 ct natural emerald, emerald cut, view 1 — Otzera OTZ-2026-01767 27 Otzera 50 rating: 27 of 50 Discovery 3.81 ct Emerald — Emerald CutEmerald Cut$1,495.00 3.53 ct natural blue spinel, oval mixed cut, view 1 — Otzera OTZ-2026-01765 28 Otzera 50 rating: 28 of 50 Collectible 3.53 ct Blue Spinel — Oval Mixed CutOval Mixed Cut$1,395.00 2.51 ct natural aquamarine, emerald cut, view 1 — Otzera OTZ-2026-01768 35 Otzera 50 rating: 35 of 50 Distinguished 2.51 ct Aquamarine — Emerald CutEmerald Cut$795.00 1.10 ct natural emerald, emerald cut, view 1 — Otzera OTZ-2026-01763 33 Otzera 50 rating: 33 of 50 Collectible 1.10 ct Emerald — Emerald CutEmerald Cut$895.00 4.33 ct pink tourmaline, oval mixed cut, view 1 — Otzera OTZ-2026-01771 30 Otzera 50 rating: 30 of 50 Collectible 4.33 ct Pink Tourmaline — Oval Mixed CutOval Mixed Cut$1,295.00 1.51 ct blue sapphire, oval mixed cut, view 1 — Otzera OTZ-2026-01764 29 Otzera 50 rating: 29 of 50 Collectible 1.51 ct Deep Blue Sapphire — Oval Mixed CutOval Mixed Cut$695.00 1.29 ct blue sapphire, round mixed cut, view 1 — Otzera OTZ-2026-01770 27 Otzera 50 rating: 27 of 50 Discovery 1.29 ct Blue Sapphire — Round Mixed CutRound Mixed Cut$565.00 1.14 ct natural ruby, oval mixed cut, view 1 — Otzera OTZ-2026-01769 31 Otzera 50 rating: 31 of 50 Collectible 1.14 ct Natural Ruby — Oval Mixed CutOval Mixed Cut$1,295.00 1.02 ct emerald, emerald cut, face-up view 27 Otzera 50 rating: 27 of 50 Discovery 1.02 ct Emerald — Emerald CutEmerald Cut$795.00 4.56 ct fire opal, triangular modified brilliant cut, face-up view 33 Otzera 50 rating: 33 of 50 Collectible 4.56 ct Fire Opal — Triangular Modified Brilliant CutTriangular Modified Brilliant$1,095.00 3.90 ct Mexican fire opal, oval modified brilliant cut, view 1 37 Otzera 50 rating: 37 of 50 Distinguished 3.90 ct Fire Opal — Oval Modified Brilliant CutOval Modified Brilliant$1,495.00 11.71 ct Brazilian morganite, heart modified brilliant cut, view 1 24 Otzera 50 rating: 24 of 50 Discovery 11.71 ct Morganite — Heart Modified Brilliant CutHeart Modified Brilliant Cut$995.00 1.66 ct raspberry rhodolite garnet cabochon, face-up view 31 Otzera 50 rating: 31 of 50 Collectible 1.66 ct Raspberry Rhodolite Garnet — CabochonCabochon$495.00 4.04 ct natural Tanzanian color-change sapphire, green-blue appearance, oval mixed cut, face-up view 36 Otzera 50 rating: 36 of 50 Distinguished 4.04 ct Tanzanian Color-Change Sapphire — GIA Origin ReportOval Mixed Cut$6,495.00 1.31 ct natural blue sapphire, oval mixed cut, face-up view 25 Otzera 50 rating: 25 of 50 Discovery 1.31 ct Blue Sapphire — Oval Mixed CutOval Mixed Cut$495.00 1.17 ct natural color-change pyrope-spessartine garnet, violet appearance, face-up view 36 Otzera 50 rating: 36 of 50 Distinguished 1.17 ct Natural Color-Change Garnet — GIA ReportCushion Mixed Cut$2,495.00 0.93 ct natural Burmese red spinel, oval mixed cut, face-up view 36 Otzera 50 rating: 36 of 50 Distinguished 0.93 ct Burmese Red Spinel — GIA Origin ReportOval Mixed Cut$3,995.00 4.84 ct natural purple spinel, oval modified brilliant, face-up view 35 Otzera 50 rating: 35 of 50 Distinguished 4.84 ct Natural Purple Spinel — GIA ReportOval Modified Brilliant$4,495.00 1.46 ct Vietnamese pink spinel, cushion modified brilliant, face-up view 34 Otzera 50 rating: 34 of 50 Collectible 1.46 ct Vietnamese Pink Spinel — GIA Origin ReportCushion Modified Brilliant$2,995.00 1.02 ct Sri Lankan pink sapphire, cushion modified brilliant, face-up view 37 Otzera 50 rating: 37 of 50 Distinguished 1.02 ct Sri Lankan Pink Sapphire — GIA Origin ReportCushion Modified Brilliant$2,895.00 1.40 ct natural purple spinel, round brilliant cut, face-up view 34 Otzera 50 rating: 34 of 50 Collectible 1.40 ct Natural Purple Spinel — GIA ReportRound Brilliant Cut$1,795.00 9.04 ct Mexican fire opal triangular modified brilliant, face-up view 46 Otzera 50 rating: 46 of 50 Exceptional 9.04 ct Mexican Fire Opal — Triangular Modified BrilliantTriangular Modified Brilliant$12,200.00 4.53 ct Mexican fire opal pear modified brilliant, face-up view 39 Otzera 50 rating: 39 of 50 Distinguished 4.53 ct Mexican Fire Opal — Pear Modified BrilliantPear Modified Brilliant$3,225.00 2.68 ct Mexican fire opal oval cabochon-brilliant hybrid, face-up view 40 Otzera 50 rating: 40 of 50 Distinguished 2.68 ct Mexican Fire Opal — Oval Cabochon-Brilliant HybridOval$2,500.00 1.80 ct Mexican fire opal triangular modified brilliant, face-up view 36 Otzera 50 rating: 36 of 50 Distinguished 1.80 ct Mexican Fire Opal — Triangular Modified BrilliantTriangular Modified Brilliant$1,575.00 8.20 ct Cambodian blue zircon oval mixed cut, face-up view 40 Otzera 50 rating: 40 of 50 Distinguished 8.20 ct Cambodian Blue Zircon — Oval Mixed CutOval Mixed Cut$2,870.00 9.10 ct Mexican fire opal cushion modified brilliant, face-up view 46 Otzera 50 rating: 46 of 50 Exceptional 9.10 ct Mexican Fire Opal — Cushion Modified BrilliantCushion Modified Brilliant$12,285.00 5.11 ct Oregon sunstone triangular modified brilliant, face-up view 46 Otzera 50 rating: 46 of 50 Exceptional 5.11 ct Oregon Sunstone — Triangular Modified BrilliantTriangular Modified Brilliant$7,665.00 2.66 ct Oregon sunstone cushion modified brilliant, face-up view 44 Otzera 50 rating: 44 of 50 Signature 2.66 ct Oregon Sunstone — Cushion Modified BrilliantCushion Modified Brilliant$3,990.00 6.53 ct Mexican fire opal triangular modified brilliant, face-up view 44 Otzera 50 rating: 44 of 50 Signature 6.53 ct Mexican Fire Opal — Triangular Modified BrilliantTriangular Modified Brilliant$7,500.00 15.45 ctw Brazilian watermelon tourmaline pair, two triangular slices with pink rims and green centers 15.45 ctw Brazilian Watermelon Tourmaline PairCarved Pair$1,495.00 8.19 ctw bicolor tanzanite matched sugarloaf cabochon pair, paired view 30 Otzera 50 rating: 30 of 50 Collectible 8.19 ctw Bicolor Tanzanite Sugarloaf Cabochon PairSugarloaf Cabochon Pair$1,495.00 4.35 ct yellow tourmaline round modified brilliant, face-up view 38 Otzera 50 rating: 38 of 50 Distinguished 4.35 ct Yellow Tourmaline — Round Modified BrilliantRound Modified Brilliant$995.00 1.03 ct unheated Sri Lankan blue sapphire oval mixed cut, face-up view, Otzera OTZ-2026-01729 29 Otzera 50 rating: 29 of 50 Collectible 1.03 ct Unheated Sri Lankan Blue Sapphire — Oval Mixed CutOval Mixed Cut$895.00 1.63 ct vivid red oval spinel shown from multiple angles, Otzera OTZ-2026-01629 40 Otzera 50 rating: 40 of 50 DistinguishedAvailable by request 1.63 ct Vivid Red SpinelOval Mixed Cut$2,450.00 3.22 ct aquamarine, close angled emerald-cut view 36 Otzera 50 rating: 36 of 50 DistinguishedAvailable by request 3.22 ct Blue Emerald-Cut AquamarineEmerald Cut$965.00 1.85 ct unheated Sri Lankan purple sapphire in a triangular mixed cut, Otzera OTZ-2026-01627 37 Otzera 50 rating: 37 of 50 DistinguishedAvailable by request 1.85 ct Unheated Sri Lankan Purple SapphireTriangular Mixed Cut$1,250.00 2.14 ct vivid orange oval spessartite garnet shown from multiple angles, Otzera OTZ-2026-01626 35 Otzera 50 rating: 35 of 50 DistinguishedAvailable by request 2.14 ct Fanta-Orange Spessartite GarnetOval Mixed Cut$825.00 4.52 ct unheated Ceylon purple sapphire, cushion cut, face-up on brushed silverAvailable by request 4.52 ct Unheated Ceylon Purple Sapphire$2,745.00 4.98 ct unheated Ceylon yellow sapphire, antique oval cut, face-up on brushed silverAvailable by request 4.98 ct Antique Ceylon Yellow Sapphire$1,175.00 4.20 ct vivid yellow sapphire, oval, face-up on a brushed silver surfaceAvailable by request 4.20 ct Vivid Yellow Sapphire$1,895.00 3.83 ct natural yellow chrysoberyl, face-up oval view on a brushed silver background.Available by request 3.83 ct Antique Yellow Chrysoberyl$1,775.00 2.30 ct blue sapphire, oval, face-up on a textured silver surfaceAvailable by request 2.30 ct Blue Sapphire$350.00 2.41 ct unheated Australian blue sapphire, cushion sugarloaf cabochon front view on a brushed silver background.Available by request 2.41 ct Unheated Australian Blue Sapphire — GIA Report$2,150.00 1.15 ct natural Sri Lankan ruby, face-up view showing vivid pinkish red colorAvailable by request 1.15 ct Natural Pinkish Red Ruby from Sri Lanka — Two Lab Reports$2,250.00 0.51 ct natural Muzo Colombian emerald, face-up view of rectangular step cutAvailable by request 0.51 ct Natural Muzo Colombian Emerald$815.00 10.32 ct natural golden beryl (heliodor), oval, face-up on a reflective silver surfaceAvailable by request 10.32 ct Natural Golden Beryl — Heliodor$625.00 1.27 ct unheated Cambodian royal blue sapphire, alternate face-up view showing vivid blue colorAvailable by request 1.27 ct Unheated Cambodian Royal Blue Sapphire$2,450.00 2.48 ct Colombian emerald, square emerald cut, face-up on brushed silver, showing its bluish green color and natural inclusionsAvailable by request 2.48 ct Colombian Emerald$1,450.00 1.71 ct Paraiba-type tourmaline with a GIA report, face-up oval view showing vivid green-blue color. 39 Otzera 50 rating: 39 of 50 DistinguishedAvailable by request 1.71 ct Paraiba-Type Tourmaline — GIA ReportOval Modified Brilliant$4,750.00